Home / 83,113.27-124,669.91-20,783.77

Finding the Fourth Proportional to 83,113.27, 124,669.91 and 20,783.77

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Solution

The fourth proportional to 83,113.27, 124,669.91 and 20,783.77 is: 31,175.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,113.27 : 124,669.91 = 20,783.77 : x
  2. Step 2: Convert to fraction form
    83,113.27/124,669.91 = 20,783.77/x
  3. Step 3: Cross multiply
    83,113.27x = 124,669.91 × 20,783.77
  4. Step 4: Simplify right side
    83,113.27x = 2,591,110,735.36
  5. Step 5: Solve for x
    x = 2,591,110,735.36/83,113.27
  6. Step 6: Final answer
    x = 31,175.66

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.